Iron golf club cavity



FIG. 1 is a back, heel side perspective view of our new iron golf club cavity;

FIG. 2 is a bottom view thereof;

FIG. 3 is a toe view thereof;

FIG. 4 is a back view thereof; and,

FIG. 5 is a heel side view thereof.

The portion of the iron club head shown in phantom does not form any portion of the claimed design. 

The ornamental design for an iron golf club cavity, as shown and described. 